#include<stdio.h>
#include<conio.h>
#include<math.h>
int main(){
	float n;
	printf("nhap vao diem: ");
	scanf("%f",&n);
	if(n >= 8 && n <= 10) printf("\nhoc sinh xep loai gioi");
	else if(n >= 7&& n < 8) printf("\nhoc sinh xep loai kha");
	else if(n >= 5 && n < 7) printf("\nhoc sinh xep loai trung binh");
	else if(n < 5) printf("\nhoc sinh xep loai yeu ");
	else printf("\nnhap sai diem, vui long nhap lai");
	getch();
}
